Illustrator file not importing correctly into After Effects (CC 2018)

[07jmitchell]

I'm trying to import an illustrator file into after effects for animating but when I import the ai file into after effects, all my layers come in as 1x1.

[Mylenium]

Without better info about your file by ways of e.g. a screenshot of the artboard and layers palette nobody can tell you anything. there could be a million reasons why it's behaving like that.

Mylenium

[Roei Tzoref]

1x1 means possibly the Ae thinks the layer is blank.

make sure you read this carefully and follow the instructions on how to prepare your Ai files to Ae:

Preparing and importing still images in After Effects

especially the artboard section.

[michaelk43115038]

Try placing the different layers in one art-board.

[justwanttochecktherespons]

I had this problem as well turns out I had multiple artboards and elements outside of the artboards. So I removed the extra artboards and made sure everything was within the borders of the artboard.

[MKR91]

Had the same problem. Seems it occurs if multiple artboards are in play. 
Remember to save your art in different layers on the same artboard - this fixed the problem for me and made it possible to switch between layers when importing to AE.